41. Fluorides interfere with electron transport and calcium metabolism. 42. The generalized electron transport chain in bacteria is: 43. COX deficiency is one of the most frequent causes of electron transport chain defects in humans. 44. Phospholipids perform important functions including regulating membrane permeability and in maintaining electron transport chain in mitochondria. 45. Electrons may enter an electron transport chain at the level of a mobile cytochrome or quinone carrier. 46. The oxidase provides an alternative route for electrons passing through the electron transport chain to reduce oxygen. 47. Take for example, the electron transport pathway. 48. Succinate dehydrogenase is an important enzyme in both the citric acid cycle and the electron transport chain. 49. This is an electron transport chain. 50. The chlorophyll donates the high energy electron to a series of molecular intermediates called an electron transport chain.